(31 May 2015, 11:05 am)northern156 wrote So the 'main' light was on green but the filter (right arrow) was not showing any aspect? If so this is legal, the filter light only gives you priority when other conflicting traffic has stopped. You can pass it unlit as long as you give way.
http://www.drivingtesttips.biz/traffic-l...uence.html
https://www.gov.uk/using-the-road-159-to...170-to-183
When the main straight across lights are on green, the right turn lane lights are on red. Its after the straight ahead lights are on red that the right turns (for both directions) turn green.